Note - Blast analyses are based on comparisons of the phosphosites and the bordering four amino acids on each side of these phosphosites.

Phosphosite
Human Protein:	MAST4
Human P-Site:	S1977
P-Site Sequence:	KPGLRESSERGPPTA
UniProt:	O15021
Intern. Prot. ID:	IPI00307611

Protein Phosphosite Match	Human Protein Short Name	Human UniProt. ID	Phosphosite Number	Sequence	% Identity / # AA	Target Size kDa
Phosphosite 0:	MAST4	O15021	S1977	KPGLRESSERGPPTA	100 / 9 AA	284
Phosphosite 1:	MAST4	O15021	S1976	EKPGLRESSERGPPT	100 / 8 AA	284
Phosphosite 2:	MEPCE	Q7L2J0	T47	SGELRGGTERGPGRC	66 / 9 AA	74
Phosphosite 3:	JPH4	Q96JJ6	S576	MLVLRGSSSRGPDAG	77 / 9 AA	66
Phosphosite 4:	PIK3R2	O00459	S650	TFLIRESSQRGCYAC	75 / 8 AA	82
Phosphosite 5:	PIK3R2	O00459	S649	GTFLIRESSQRGCYA	75 / 8 AA	82
Phosphosite 6:	HOOK2	Q96ED9	S304	MDELRQSSERAGQLE	75 / 8 AA	83
Phosphosite 7:	GSTCD	Q8NEC7	S166	ENFLRESSDQPPTIP	66 / 9 AA	71
Phosphosite 8:	HOOK2	Q96ED9	S303	EMDELRQSSERAGQL	75 / 8 AA	83
Phosphosite 9:	KCNAB3	O43448	S71	PAGALRESTGRGTGM	75 / 8 AA	44
Phosphosite 10:	QRICH2	Q9H0J4	S1149	ELAELRESQDRGKAA	75 / 8 AA	181
Phosphosite 11:	KCNAB3	O43448	T72	AGALRESTGRGTGMK	75 / 8 AA	44
Phosphosite 12:	CCDC88A	Q3V6T2	S549	IETLRENSERQIKIL	85 / 7 AA	216
Phosphosite 13:	UCK2	Q9BZX2	S172	RRVLRDISERGRDLE	75 / 8 AA	29
Phosphosite 14:	MYCL1	P12524	S229	SCSQEEASERGPQEE	85 / 7 AA	40
Phosphosite 15:	RBM33	Q96EV2	S295	VGDQRRESTERGRMK	85 / 7 AA	130
Phosphosite 16:	ERCC5	P28715	S705	ESLLRDNSERDDVDG	62 / 8 AA	133
Phosphosite 17:	RBM33	Q96EV2	T296	GDQRRESTERGRMKD	85 / 7 AA	130
Phosphosite 18:	AASS	Q9UDR5	S468	YIQTLRESRERAQSL	75 / 8 AA	102
Phosphosite 19:	ZNF541	Q9H0D2	S445	AVPSREGSESGPGPS	75 / 8 AA	148
Phosphosite 20:	KIF4B	Q2VIQ3	T629	LLKLKESTERTVSKL	71 / 7 AA	140